Networking for Systems Administrators (IT Mastery) (Volume 5)
Michael W Lucas
Python for Unix and Linux System Administration
Noah Gift & Jeremy Jones
Linux Utilities Cookbook
James Kent Lewis
Java 8 in Action: Lambdas, Streams, and Functional-Style Programming
Raoul-Gabriel Urma & Mario Fusco & Alan Mycroft
TCP/IP Illustrated: Volume 3 TCP for Transactions, HTTP, NNTP, ...
W. Richard Stevens & Gary R. Wright
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